TESTING - TM-9-4120-428-140170

TM 9-4120-428-14

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TESTING

1. Tag and disconnect ALL wire leads.

2. Use a multimeter, set to read high resistance. Place meter leads on the terminals of the capacitor.

3. If the capacitor is good, the multimeter needle should move rapidly toward the low-end of the scale, then slowly

return toward infinity, stopping at the value of the attached bleed resistor. If the needle moves to zero and remains

steady, the capacitor is internally short-circuited. If the needle indicates the value of the attached bleed resistor, the

capacitor has an open circuit. Replace if the capacitor indicates a short circuit, an open circuit, or other damaged.

4. See WP 0028 00, Wiring Diagram. Connect all wire leads and remove tags.

REPLACEMENT

1. Use a screwdriver with an insulated handle to discharge the capacitor.

2. Loosen four screws (1) and the holding compressor start capacitor C5 (3) to the Top Rear Panel. Do not remove tie

down straps (2).

3. Remove the capacitor (3) by sliding out from under the straps.

4. Tag and disconnect ALL wire leads.

5. Place the new capacitors (3) into the straps (2).

6. See WP 0028 00, Wiring Diagram. Connect all the wire leads and remove tags.

7. Tighten four screws (1), secure straps (2), and holding capacitors (3).

NOTE

FOLLOW-ON MAINTENANCE:

Install Top Rear Panel (WP 0019 00)

END OF WORK PACKAGE

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